[00:02.450]The Mai Po marshes are part of the Pearl River estuary,
[00:06.200]whose muddy shores abound with crabs, worms and mud-skippers.
[00:12.370]
[00:27.070]Exposed at low tide, this smorgasbord of mud-life attracts both waders and the gei wai birds.
[00:37.600]
[00:51.460]Here on the mudflats of Inner Deep Bay,
[00:55.160]each kind of bird has its own specific feeding zone defined by the depth of the water, the length of its beak and its feeding technique.